Lubricator for crank-pins



UNrrao STATES @PATENT @rrrcn JOSEPH HANDFORTH IVILKINSON, OF BOSTON, MASSACHUSETTS.

LUBRICATOR FOR CRANK-PINS.

SPECIFICATION forming part of Letters Patent No. 307,892, dated November 11,1884.

Application filed Scptembcr 13, 1884. (No model.)

T0 aZZ whom it may concern.-

Be it known that I, J osnrrr HANDFORTI-I WVILKINsoN, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in OiLCups; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My present improvement relates to a class of oil-cups containing provision for enabling the oil as it drips from the reservoir or cup to be readily seen, in order that the operation of the device may be observed.

Heretofore it has been customary to terminate the bottom of the oil-reservoir in a tubular teat, through which the oil escapes and descends in drops, and in order to prevent access of dust or other foreign matters to the dripping oil, and being carried with the latter to the bearing as the oil leaves the teat, the latter has been surrounded by a transparent tube, through which the teat and escaping oil are intended to be visible. 7 In this construction the efficiency of the transparent tube or case is often, and, in fact, usually, impaired by reason of condensation or fouling upon its interior, necessitating its frequent removal and cleaning.

The main purpose of my present improvement is to avoid the above-named objections by producing a device which enables the dripping oil to be readily visible, and yet preventdust or foreign matter from being carried with the oil into contact with the bearing to be lubricated.

Incidental features of my invention will be hereinafter duly explained.

The drawings accompanying this specification represent, in Figure 1, a side elevation, and

in Fig. 2 a vertical section, of an oil-cup containing my invention. Fig. 3 is a horizontal section on line J of Fig. 2.

In said drawings, A represents the oil-reservoir, and A the tubular teat constituting the lower termination of the cup, and through which the oil escapes.

Below the reservoir A, I place a cup or bowl, E, which I suspend from the oil-reservoir by small arms 0 O, which offer little obstruction to a view of the said teat and the oil dripping from the latter. The boWlEhas an outlet, F, through which oil escapes to the bearing to be lubricated. I place in the bowl E a quantity of porous materialsuch as woolen yarn, tow, cotton waste, or other materialthe purpose of which is to arrest any dust or,other gritty or foreign matter which may drop with the oil upon it, whether such foreign matter is contained in the oil originally or gets access to such oil as the latter escapes from the reservoir. By this construction the dropping oil is always visible and the trouble and annoyance of frequent removal and cleaning of the transparent case avoided, while at the same time the oil is filtered and passes to the bearing in a perfectly clean state.

As it is important in oilers of this class to adj ust the flow of oil with considerable nicety, I have made an additional improvement, which consists in means for preventing change in the position of the valve which governs the outlet of the reservoir after such valve is set to the requisite point. The position of this valve is at present liable to derangement by the jar of so shocks of the machinery with which the oiler is connected. I carry out this feature of my improvement by the employment of a spring, f, (preferably a spiral metallic one,) which surrounds the valve-stem (Z and exerts its stress between the valve-seat g and the head h of the valve-stem. The spring f functions to produce such friction upon the threads of the screw of the head h as to prevent accidental turning of such head within the screw-threaded mouth 0 i of the reservoir A.

I claim- 1. In an oil-cup of the automatically-lubrieating sort, an oil-receptacle, in combination with an absorbent-holding receptacle disposed below the same, and connections between the two which allow the oil to be seen as it drips valve against accidental displacement, as set from the former receptacle to the latter, subforth. 1o stantially as set forth. In testimony whereof I afiix my signature in 2. In combination with absorbent-receptapresence of two witnesses. V ole E, outlet F, and the arms 0, having open- JOSEPH HANDFOR'III WILKINSON. ings between them, the oil-reservoir A, having \Vitnesses: a teat, A, the valve d, having a screw-threacl- A. F. HAYDEN,

ed part, h, and the spring fiwhich holds said F. CURTIS. 

